Withdrawal
Pic. 2.207. Engine cover
Remove the engine cover (pic. 2.207).
With a 16 mm wrench, turn the lever of the automatic accessory drive belt tensioner clockwise by about 14 degrees, remove the belt.
Remove the power steering pump and crankshaft pulleys, tensioner pulley and idler pulley
Pic. 2.208. Upper and lower timing belt covers
Remove the upper and lower timing belt covers (pic. 2.208).
Remove the automatic timing belt tensioner.
Pic. 2.209. Turning the crankshaft
Attention! Turn the crankshaft clockwise until the alignment marks on the crankshaft sprocket and block are aligned, corresponding to the TDC of the piston of the 1st cylinder (pic. 2.209). The alignment marks of the camshaft sprockets must be aligned with the benchmarks on the valve cover
Remove the timing belt.
Pic. 2.210. Direction of rotation marking
Note. If the timing belt is reused, it must be chalked on the back (non-working) belt surface an arrow indicating the direction of rotation (or crankshaft pulley location), so that when installing the belt, do not confuse the direction of its rotation (pic. 2.210).
Examination
When overhauling the engine or adjusting the belt tension, carefully inspect the belt. If any of the defects listed below is found, replace the belt with a new one.
Hardening of the back side of the belt.
Pic. 2.211. Checking belt hardening
The back side of the belt becomes shiny and so hard that the nail, when pressed, does not leave a mark on it (pic. 2.211).
Pic. 2.212. Cracks and delaminations on the surface of the belt
Cracks or peeling of tooth coating material (pic. 2.212).
Pic. 2.213. Side wear
The side of the belt is worn (pic. 2.213).
Note. A normal belt should have clearly defined side edges, similar to knife-cut surfaces.
Severe tooth wear.
Initial stage: the coating on the loaded side of the belt teeth is worn out (fraying of the thread base of the coating, the rubber base is exposed, the color of the belt has changed to colorless, fuzzy structure of the thread base).
Last stage: the coating is completely worn out and the rubber base on the loaded side of the belt teeth is exposed (reduction in tooth thickness).
Pic. 2.214. Tensioner pulley check
Pic. 2.215. Timing belt outline
Check the ease and smoothness of rotation of the timing belt tensioner pulley and guide pulley, and make sure that there is no excessive play and extraneous noise during rotation. Replace if necessary (pic. 2.214).
Installation
Pic. 2.216. Guide roller installation
Install the belt idler into the coolant pump bosses (pic. 2.216).
Note. The roller guide pin must be fully seated in the boss.
Install the auto-tensioner arm with washer to the cylinder block.
Install the auto tensioner pulley on the lever.
Pic. 2.217. Installing sprockets
Install the camshaft sprockets and align the alignment marks with the benchmarks (pic. 2.217).
Note. When tightening the bolts of the camshaft sprockets, hold the shaft from turning by the hexagon of the shaft
If the timing marks of the camshafts do not match the benchmarks, turn the shaft in the right direction, but no more than three teeth of the sprocket, since then the valve and piston come into contact.
If more than three teeth turn is needed, turn the crankshaft counterclockwise about 45 degrees. Carefully rotate the camshaft and return the crankshaft to its original position.
Install the auto tensioner.
Pic. 2.218. locating pin
Attention! Before installation, fix the auto-tensioner push rod in the body with a suitable pin (pic. 2.218).
Check the alignment of all alignment marks with the benchmarks and put on the belt in the following sequence:
Crankshaft - idler roller - left camshaft - coolant pump - right camshaft - idler pulley
Pic. 2.219. Removing the dowel pin
Remove the auto-tensioner pushrod fixing pin (pic. 2.219).
Install the upper and lower timing belt covers
Install the power steering pump and crankshaft pulleys, tensioner pulley and idler pulley.
Using a 16 mm wrench, turn the lever of the automatic accessory drive belt tensioner clockwise by about 14 degrees, put on the belt.
Install the engine cover.
Checking the timing belt tension
Turn the crankshaft two turns clockwise until the No. 1 piston is at TDC on the compression stroke. Take a break for five minutes.
Pic. 2.220. Pusher clearance
Measure the protrusion of the automatic tensioner push rod. Protrusion should be within 6–8 mm (pic. 2.220).
Check the alignment of all installation marks with benchmarks.
Note. If the marks do not align, repeat the timing belt installation procedure.